GMC Sierra Z71 2012 Automatic Gasoline mileage: 278 KM 4WD For exchange GMC Sierra 2012, original body, silver color. Condition: Engine, gearbox, airbags, chassis are all sound, praise be to God. I accept exchange for FJ, Ram, or a short-wheelbase Jeep (Rubicon) or a long-wheelbase Jeep (Land Cruiser).